A condition where a person shoots himself (or herself) in the leg while holstering their Glock pistol.

This can happen with any weapon yielded by a careless user, but it is common among Glock pistols due to the lack of a manual safety, relatively light trigger pull, and lack of a proper hammer to push on while holstering.

How is Jim doing? I heard that he came down with a case of Glock leg at the range yesterday.